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- 后端:应用 go fmt 自动格式化,统一代码风格 - 前端:更新 API 配置,完善类型安全 - 所有代码符合项目规范,准备生产部署
78 lines
2.0 KiB
Go
78 lines
2.0 KiB
Go
package database
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import (
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"fmt"
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"gorm.io/driver/mysql"
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"gorm.io/driver/postgres"
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"gorm.io/driver/sqlite"
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"gorm.io/gorm"
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"gorm.io/gorm/logger"
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"log"
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"os"
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"time"
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)
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type Config struct {
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Driver string `json:"driver"` // mysql, postgres, sqlite
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Host string `json:"host,optional"`
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Port int `json:"port,optional"`
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Username string `json:"username,optional"`
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Password string `json:"password,optional"`
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Database string `json:"database,optional"`
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Charset string `json:"charset,optional"`
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SSLMode string `json:"ssl_mode,optional"`
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FilePath string `json:"file_path,optional"` // for sqlite
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}
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func NewDB(config Config) (*gorm.DB, error) {
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var db *gorm.DB
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var err error
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// 配置日志
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newLogger := logger.New(
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log.New(os.Stdout, "\r\n", log.LstdFlags), // io writer
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logger.Config{
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SlowThreshold: time.Second, // 慢 SQL 阈值
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LogLevel: logger.Silent, // 日志级别
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Colorful: false, // 禁用彩色打印
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},
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)
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switch config.Driver {
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case "mysql":
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dsn := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?charset=%s&parseTime=True&loc=Local",
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config.Username, config.Password, config.Host, config.Port, config.Database, config.Charset)
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db, err = gorm.Open(mysql.Open(dsn), &gorm.Config{
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Logger: newLogger,
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})
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case "postgres":
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dsn := fmt.Sprintf("host=%s user=%s password=%s dbname=%s port=%d sslmode=%s TimeZone=Asia/Shanghai",
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config.Host, config.Username, config.Password, config.Database, config.Port, config.SSLMode)
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db, err = gorm.Open(postgres.Open(dsn), &gorm.Config{
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Logger: newLogger,
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})
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case "sqlite":
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db, err = gorm.Open(sqlite.Open(config.FilePath), &gorm.Config{
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Logger: newLogger,
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})
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default:
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return nil, fmt.Errorf("unsupported database driver: %s", config.Driver)
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}
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if err != nil {
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return nil, err
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}
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// 设置连接池
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sqlDB, err := db.DB()
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if err != nil {
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return nil, err
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}
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sqlDB.SetMaxIdleConns(10)
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sqlDB.SetMaxOpenConns(100)
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sqlDB.SetConnMaxLifetime(time.Hour)
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return db, nil
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}
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